The title compound (2) was found to undergo a (2 + 4) cycloaddition with 2,3-dimethylbuta-1,3-diene affording the tetrahydro-1,2-benzisoxazole (3), which could be easily converted into the corresponding dihydro derivative (4) by elimination of the NO2 and CO2Et groups.
R. Nesi, D. Giomi, S. Papaleo and L. Quartara, J. Chem. Soc., Chem. Commun., 1986, 1536 DOI: 10.1039/C39860001536
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